單片機是單片微型計算機（SingleChipMicrocomputer）的簡稱，它的內(nèi)部包含有計算機的基本功能部件：中央處理器（CPU）、存儲器、定時/計數(shù)器、各種串/并行I/O接口電路等。因此，單片機只需要和適當(dāng)?shù)能浖巴獠吭O(shè)備相結(jié)合，便可成為一個單片機控制系統(tǒng)。近年來，由于半導(dǎo)體技術(shù)和工藝的快速發(fā)展，以及針對各行各業(yè)的實際應(yīng)用需要，單片機的開發(fā)方面又出現(xiàn)了許多新的技術(shù)。SOC（System On Chip，片上系統(tǒng)）等名詞日益被人們所熟悉和關(guān)注。
上傳時間： 2013-10-10
上傳用戶：zhang97080564
一、課程簡介及要求： 課程名稱（中英文）單片機原理及應(yīng)用 Principle of Chip Microcomputer 課程編碼 241016 學(xué)分 2 學(xué)時（含實驗： ）46 (8) 開課單位 信息學(xué)院實驗中心 課程內(nèi)容 掌握 MCS51 匯編軟語言程序設(shè)計和調(diào)試方法、掌握 MCS51 單片機原理及其應(yīng)用方法 選課對象 本科 相關(guān)理論課程 微機原理與應(yīng)用；計算機控制技術(shù)； 測控電路；單片機原理及接口技術(shù)等 參考教材 單片機原理及應(yīng)用 考試方式及評分標(biāo)準(zhǔn)
上傳時間： 2014-12-27
上傳用戶：HGH77P99
NXP Semiconductor designed the LPC2400 microcontrollers around a 16-bit/32-bitARM7TDMI-S CPU core with real-time debug interfaces that include both JTAG andembedded Trace. The LPC2400 microcontrollers have 512 kB of on-chip high-speedFlash memory. This Flash memory includes a special 128-bit wide memory interface andaccelerator architecture that enables the CPU to execute sequential instructions fromFlash memory at the maximum 72 MHz system clock rate. This feature is available onlyon the LPC2000 ARM Microcontroller family of products. The LPC2400 can execute both32-bit ARM and 16-bit Thumb instructions. Support for the two Instruction Sets meansEngineers can choose to optimize their application for either performance or code size atthe sub-routine level. When the core executes instructions in Thumb state it can reducecode size by more than 30 % with only a small loss in performance while executinginstructions in ARM state maximizes core performance.
上傳時間： 2013-11-15
上傳用戶：zouxinwang
基于AT89C52單片機的步進電機控制系統(tǒng)設(shè)計 摘 要: 提出了一個由AT89C52單片機控制步進電機的實例。可以通過鍵盤輸入相關(guān)數(shù)據(jù), 并根據(jù)需要, 實時對步進電機工作方式進行設(shè)置, 具有實時性和交互性的特點。該系統(tǒng)可應(yīng)用于步進電機控制的大多數(shù)場合。實踐表明, 系統(tǒng)性能優(yōu)于傳統(tǒng)的步進電機控制器。 關(guān)鍵詞: 單片機; 步進電動機; 直流固態(tài)繼電器; 實時控制 ABSTRACT: A stepp ing motor control system based on AT89C52 chip microcomputer was described.The data can be inputwith keyboard, and stepp ingmotorwas controlled by these data. According to the demand, users can set the workingmodel of stepp ingmotor in real2time. This system can be widely used in stepp ing motor controlling. The p ractice showed that the performance of this system outdid the tradi-tional stepp ing motor controller.
上傳時間： 2013-11-22
上傳用戶：vodssv
單片機入門知識手冊 說到單片機，首先想到的是中央處理器（CPU），學(xué)過微型計算機的人都知道，CPU是計算機最核心的部分，它可以完成算術(shù)運算和邏輯運算，CPU再配上外部存儲器，輸入輸出單元就構(gòu)成一臺微型計算機。其實單片機可以看成一臺微型計算機，它具有CPU的功能，并且自身帶有存儲器，帶有輸入輸出接口（如串行UART、AD轉(zhuǎn)化、PWM控制），單片機配上一些簡單的外圍電路，就可以完成智能控制或數(shù)據(jù)采集等。所以，單片機的英文名叫MCU（Micro Chip Uint），翻譯成中文是微控制單元。 單片機能干什么？通俗一點講，單片機只有兩個功能：一個是數(shù)據(jù)采集，另一個是控制。其實都很好理解，數(shù)據(jù)采集實際上是從外間輸入，如從AD（模數(shù)轉(zhuǎn)化）口讀入一個電壓值，從串口接收一個數(shù)據(jù)等等。控制實際上是輸出，51單片機有32個IO口，每個IO口可以驅(qū)高或驅(qū)低，單片機以此來實現(xiàn)對外間的控制。一個單片機系統(tǒng)都可以用下面這個框圖來說明：
上傳時間： 2013-10-26
上傳用戶：zhaoman32
NEC 16位MCU參考手冊 The 78K0R/IC3 is a 16-bit single-chip microcontroller that uses a 78K0R CPU core and incorporates peripheral functions, such as ROM/RAM, a multi-function timer, a multi-function serial interface, an A/D converter, a programmable gain amplifier (PGA), a comparator, a real-time counter, and a watchdog timer.
上傳時間： 2013-11-02
上傳用戶：努力努力再努力
The CAT28LV64 is a low voltage, low power, CMOS Parallel EEPROM organized as 8K x 8−bits. It requires a simple interface for in−system programming. On−chip address and data latches, self−timed write cycle with auto−clear and VCC power up/down write protection eliminate additional timing and protection hardware. DATA Polling and Toggle status bit signal the start and end of the self−timed write cycle. Additionally, the CAT28LV64 features hardware and software write protection.
上傳時間： 2013-11-16
上傳用戶：浩子GG
The CAT25128 is a 128−Kb Serial CMOS EEPROM device internally organized as 16Kx8 bits. This features a 64−byte page write buffer and supports the Serial Peripheral Interface (SPI) protocol. The device is enabled through a Chip Select (CS) input. In addition, the required bus signals are clock input (SCK), data input (SI) and data output (SO) lines. The HOLD input may be used to pause any serial communication with the CAT25128 device. The device featuressoftware and hardware write protection, including partial as well as full array protection.
標(biāo)簽： 25128 EEPRO CMOS CAT
上傳時間： 2013-11-15
上傳用戶：fklinran
This application report discusses the design of non-invasive optical plethysmographyalso called as pulsoximeter using the MSP430FG437 Microcontroller (MCU). Thepulsoximeter consists of a peripheral probe combined with the MCU displaying theoxygen saturation and pulse rate on a LCD glass. The same sensor is used for bothheart-rate detection and pulsoximetering in this application. The probe is placed on aperipheral point of the body such as a finger tip, ear lobe or the nose. The probeincludes two light emitting diodes (LEDs), one in the visible red spectrum (660nm) andthe other in the infrared spectrum (940nm). The percentage of oxygen in the body isworked by measuring the intensity from each frequency of light after it transmitsthrough the body and then calculating the ratio between these two intensities.
標(biāo)簽： Pulsoximeter Single-Chip Des
上傳時間： 2013-10-27
上傳用戶：黑漆漆
數(shù)字時鐘應(yīng)用資料 單片計算機即單片微型計算機。（Single-Chip Microcomputer ）,是 集CPU ,RAM ,ROM ,定時，計數(shù)和多種接口于一體的微控制器。他體積小，成本低，功能強，廣泛應(yīng)用于智能產(chǎn)品和工業(yè)自動化上。而51 單片機是各單片機中最為典型和最有代表性的一種。這次畢業(yè)設(shè)計通過對它的學(xué)習(xí)，應(yīng)用，從而達(dá)到學(xué)習(xí)、設(shè)計、開發(fā)軟、硬的能力。
標(biāo)簽： 數(shù)字時鐘 應(yīng)用資料
上傳時間： 2013-10-13
上傳用戶：zhqzal1014
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